Valve-spring remover.



E. N. KRAENIER.

VALVE SPRING REMOVER. APPLICATION FILED DEC. 3, 1914.

EDWIN N. KRAEMER, OF CEDARBURG, WISCONSIN.

VALVE-SPRING REMOVER.

To all whom t may concern Be it known that I, EDWIN N. KRAEMER,

a citizen of the United States, and resident of Cedarburg, in the countyof Ozaukee and Stateo'f Wisconsin, have invented new and usefulImprovements in Valve-Spring Relniovers, of which the following is adescription, reference being had to the accompanying drawings, which area part of this specification.

' This invention has for its object to provide a valve spring removerconstituting an improvement upon the construction covered by UnitedStates Letters Patent No. 1,035,974, dated August 20, 1912.

yhe object of the invention is to provide the valve spring remover withone jaw mem* ber having its parts forming the pair of projecting hornsadjustable with relation to each. other to accommodate between themvalve stems of projecting'valve guides of the invention consists in thevalve spring remover as herein kclaimed Iand all equivaf lents. y

Referring to the accompanying drawing in which like characters ofreference indicate the same parts in diiferent views: 4Figure 1 is aView of a valve spring remover constructed in accordance with thisinvention, showing the manner of use thereof, parts of an engine beingshown in section for this purpose. Fig. 2 is an enlarged detail viewthereof showingvthe spring compressed betweenits jaws; Fig. 3 is a planview thereof; Fig. t is an end view thereof; and, Fig. 5 is a view ofthe adjustable jaw member looking atits inner face and showing by dottedlines the adjustability the-reo ln these drawings the partsare forconvenience designated by the' same reference characters employed in thedrawing of my former patent wherever possible.

The engine 8 with its exhaust valve 9 and cam 10, the valve stem 11, thecam rod 12, 'valve spring 13 and the valve casing 14, all being ofordinary construction and forming no part of the present invention, areshown as before to illustrate the manner of use of the valve springremover. The valve casing 14, however, is shown with a depending lug orboss forming a valve stem guide 14 to show the necessity for ltheadjustable fea- Specification' of Letters Patent.

Application tiled December 3, 1914. i Serial No. 875,211.

Patented July er, 1915i lture of one of the valve remover jaw members.yf

The tool itself comprises, as before, the levers 16 pivotally connectedto the trans verse member 17 with the pair of toggle links 20 connectingthe levers to a thread ed rod 21 passing through an opening 22 in thetransverse member and having the thumb nut 23 threaded on its end foropening and closing the levers. The jaw mem ber ofone of the levers 1Gremains as before, with the opening 18 in its end to receivethe valvestem and the depression 19 to forni a seat for the spring.

'Instead 'of both jaw members being alike as before, the jaw member of`the other lever 16 is adjustable. The enlarged end 25 of this lever 16terminates in a straight edge at right angles to the longitudinal axisof the lever and is rabbeted on its inner surface to form a shoulderedguideway or seat 26 for a pair of jaw blades 27 which are held in placethereon by means of a bolt 28 passing through the member 25 and throughslots 29 in the jaw blades. The jaw blades 27 are preferably` of sheetmetal with theirV 'edges bearing against the shoulder of seat 26 so asto be guided thereby in their adjustments, and each having an outwardlyprojecting horn 30, with edges forming flanges 31 bent out of the planethereof to form a seat for the valvel spring. These fianges 31 taper toawedge like shape to facilitate the introduction of the coil springremover between the convolutions of the spring or between the end of thespring and the valve casing 14.

The objection to a coil spring remover with bifurcated jaw members onthe ground that the members must be engaged with the spring beyond theend of the projecting valve rod guide or else the horns-thereof will betoo far apart to retain the valve springs of other engines isovercome bythe adjustability of the jaw blades of this invention which enable themto be moved to position the horns 30 nearer together or farther apart,either to closely embrace the thinnest valve rod or to receive betweenthem theof the spring which will in all cases relieve the cotter pin 15Vfrom pressure so that it may be removedand the valve with its steinwitlnlra'wn, lea ving the spring heldbetween the jaw members of thespring remover until it is desired to reassemble the parts.

.The adjustal'iility'o one jaw member of the device is sufficient toadapt it forlise generally with motors of various sizes and makes sothat the one tool is sutficientfeqilipment t'or removing valve springsin general `repair work. (l

Vhat I claim as new and desire to secure by Letters Patentis' 1. A valvespring remover, pairot1 bifurcat'ed j aw members, and means for 'movingthe jaw'members `toward each .other for compressing a springl betweenthem,y one of the j au' members com rising a pair of horns adjustablewith .re ation to eachother'.

2. -A valve spring remover, comprising a pair of .leverspivotally'connected together,

means for moving thedevers toward or .aiay from each yothel ',`a forkedjaw onone -..lever, there being a shouldered seat extendother, levera upail.- 0f

ing transversely across the inner face ofthe yJlmv blades fittingtogether'on said seat, a olt'passmg ythrough comprising a the end ofsaid lever and through slots in the jaw blades parallel with theshoulder of the seat, and horns projecting from the jaw blades to formtogether a forked jaw member with the horns adjustable with relation toeach other. i

V S. A valve spring remover, comprising a pair of levers pivotallyconnected together, means for moving the levers toward or away from eachother, a forked jaw on one lever, there beinga shouldered seat extend.-ing transversely across the inner face of the other lever, a pair of jawblades fitting to-A vgether on said seat, a bolt passing through the`end of said lever, and through slots in the jaw blades parallel Withthe shoulder ot the seat, horns projecting from the jaw blades to formtogether aforked jaW inember with the horns adjustable with relation ltoeach other, and tapering fianges bent up from the edges ot' the horns toform a spring seat. l

vIn testimony whereof, I afli-x my signature, 1n jnfesence oftuowitnesses.

EDVVIN N, KRAEMER.

Witnesses:

R. S. C. CALDWELL, I {A'rnnmxn Hoi/r.

